package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpRequest;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

/**
 * @Description: 员工controller
 * @ClassName: EmployeeController
 * @Author: xmc
 * @Date: 2022/8/14 15:02
 * @Version: 1.0
 */

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    /**
     *
     *方法说明:员工登录
     * @author xmc
     * @param httpServletRequest
     * @param employee
     * @return com.itheima.reggie.common.R<com.itheima.reggie.entity.Employee>
     * @date 2022/8/14 16:30
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest httpServletRequest, @RequestBody Employee employee){
        //①. 将页面提交的密码password进行md5加密处理, 得到加密后的字符串
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //②. 根据页面提交的用户名username查询数据库中员工数据信息
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
            Employee emp= employeeService.getOne(queryWrapper);

        //③. 如果没有查询到, 则返回登录失败结果
        if(emp == null){
            return R.error("登录失败");
        }
        //④. 密码比对，如果不一致, 则返回登录失败结果
        if(!password.equals(emp.getPassword())){
            return R.error("登录失败");
        }
        //⑤. 查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if(emp.getStatus() == 0){
            return R.error("该账号已被禁用！");
        }
        //⑥. 登录成功，将员工id存入Session, 并返回登录成功结果
        httpServletRequest.getSession().setAttribute("employee",emp.getId());
        
        return R.success(emp);
    }


    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("employee");
        return R.success("退出成功！");
    }

    /**
     *  添加员工
     *方法说明:
     * @author xmc
     * @param httpServletRequest
     * @param employee
     * @return com.itheima.reggie.common.R<java.lang.String>
     * @date 2022/8/15 9:01
     */

    @PostMapping
    public R<String> save(HttpServletRequest httpServletRequest,@RequestBody Employee employee){
        log.info("添加员工->{}",employee.toString());
        Long empID = (Long) httpServletRequest.getSession().getAttribute("employee");
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//        //创建人id通过ssesion获得
//        employee.setCreateUser(empID);
//        employee.setUpdateUser(empID);
        boolean rs = employeeService.save(employee);
        if(!rs){
            return R.error("添加员工失败");
        }
        return R.success("添加员工成功");
    }
    /**
     *
     *方法说明:分页查询
     * @author xmc
     * @param page
     * @param pageSize
     * @param name
     * @return com.itheima.reggie.common.R<com.baomidou.mybatisplus.extension.plugins.pagination.Page>
     * @date 2022/8/16 7:02
     */

    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        log.info("前端传过来的page:{},pageSize{},name{}",page,pageSize,name);
        //构造分页构造器
        Page pageInfo = new Page(page,pageSize);
        //构造分页条件
        LambdaQueryWrapper<Employee> wrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        wrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
        //添加排序条件
        wrapper.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo, wrapper);
        return R.success(pageInfo);
    }
    /**
     *
     *方法说明:禁用功能
     * @author xmc
     * @param request
     * @param employee
     * @return com.itheima.reggie.common.R<java.lang.String>
     * @date 2022/8/16 7:02
     */

    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info(employee.toString());
        Long empId = (Long) request.getSession().getAttribute("employee");
        employee.setUpdateUser(empId);
        employee.setUpdateTime(LocalDateTime.now());
        employeeService.updateById(employee);
        return R.success("禁用成功");
    }


    /**
     *
     *方法说明:根据id查找员工信息，回显页面
     * @author xmc
     * @param id
     * @return com.itheima.reggie.common.R<com.itheima.reggie.entity.Employee>
     * @date 2022/8/16 7:05
     */

    @GetMapping("{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("获取到id:{}",id);
        Employee employee = employeeService.getById(id);
        if(employee != null){
            return R.success(employee);
        }
        return R.error("没有查到该员工");

    }


}
